LEGO® Powered Up Light.
port (Port) – Port to which the device is connected.
Turns on the light at the specified brightness.
brightness (brightness: %) – Brightness of the light.
Turns off the light.
Gradually change the brightness¶
from pybricks.pupdevices import Light from pybricks.parameters import Port from pybricks.tools import wait, StopWatch # The math module is part of standard MicroPython: # https://docs.micropython.org/en/latest/library/math.html from math import pi, cos # Initialize the light and a StopWatch. light = Light(Port.A) watch = StopWatch() # Cosine pattern properties. PERIOD = 2000 MAX = 100 # Make the brightness fade in and out. while True: # Get phase of the cosine. phase = watch.time()/PERIOD*2*pi # Evaluate the brightness. brightness = (0.5 - 0.5*cos(phase))*MAX # Set light brightness and wait a bit. light.on(brightness) wait(10)